Tendon and Ligament Injuries

Authors: Kanno N1, Hara Y, Fukano S, Fujie H, Ochi H, Fujita Y, Yasuji H, Nezu Y, Yogo T, Tagawa M.
Journal: Vet Comp Orthop Traumatol

Objective: The aim of this study was to investigate the biomechanical effects of cranial cruciate ligament (CrCL) transection on stifle stability at three different stifle joint flexion angles using a robotic system. Methods: This was an ex vivo biomechanical study. Stifles (n = 6) were collected from the cadavers of Beagles weighing 10.5-12.0 kg. Six stifle joints were dissected, potted, and secured to the manipulator arms of a robotic simulator.

Authors: Ley B1, Daubs B, Bader J, Silverman E.
Journal: Vet Comp Orthop Traumatol

Objectives: To determine whether the medial collateral ligament can be a reliable intra-operative anatomical landmark for rotation of the tibial plateau in the tibial plateau levelling osteotomy (TPLO) procedure, thus providing a tibial plateau rotation equal to that obtained using standard preoperative measurements. Methods: Tibial plateau levelling osteotomy procedures were performed on pelvic limbs (n = 42) from canine cadavers with or without a history of cranial cruciate ligament deficiency.

Authors: Kennedy KC1, Perry JA, Duncan CG, Duerr FM.
Journal: Vet Surg

OBJECTIVE:

To report clinical and histopathologic features of long digital extensor (LDE) tendon mineralization with concurrent cranial cruciate ligament (CCL) rupture in a dog.

STUDY DESIGN:

Case report.

ANIMAL:

1.5-year-old, male castrated, English bulldog mix weighing 31.5 kg.

METHODS:

Pre- and postoperative orthogonal radiographs, arthroscopic evaluation, arthrotomy with en bloc surgical excision, and histopathologic analysis of the excised LDE tendon.

Authors: Tan CJ1, Bergh MS, Schembri MA, Johnson KA.
Journal: Vet Surg

OBJECTIVE:

To report the accuracy of osteotomy position in dogs undergoing tibial plateau leveling osteotomy (TPLO) and to evaluate the effect of 2 different TPLO jig and saw systems on tibial osteotomy position.

STUDY DESIGN:

Retrospective case series.

ANIMALS:

Dogs (n = 124; 134 TPLO).

METHODS:

Authors: Headrick JF1, Zhang S, Millard RP, Rohrbach BW, Weigel JP, Millis DL.
Journal: Am J Vet Res

Objective-To compare the 3-D motion of the pelvic limb among clinically normal dogs and dogs with cranial cruciate ligament (CCL)-deficient stifle joints following tibial plateau leveling osteotomy (TPLO) or lateral fabellar-tibial suture (LFS) stabilization by use of an inverse dynamics method. Animals-6 clinically normal dogs and 19 dogs with CCL-deficient stifle joints that had undergone TPLO (n = 13) or LFS (6) stabilization at a mean of 4 and 8 years, respectively, prior to evaluation.

Authors: Soto N1, Fauber AE, Ko JC, Moore GE, Lambrechts NE.
Journal: J Am Vet Med Assoc

Objective-To compare the analgesic effects of intra-articularly administered saline (0.9% NaCl) solution, morphine, dexmedetomidine, and a morphine-dexmedetomidine combination in dogs undergoing stifle joint surgery for cranial cruciate ligament rupture. Design-Randomized, controlled, clinical trial. Animals-44 dogs with cranial cruciate ligament rupture that underwent tibial tuberosity advancement (TTA) or tibial plateau leveling osteotomy (TPLO).

Authors: Lorenz ND, Pettitt R1.
Journal: Vet Comp Orthop Traumatol

The management of failed surgical procedures involving osteotomy for tibial tuberosity advancement can be demanding due to the limited available bone stock, which must be large enough to counteract the powerful proximal and cranial distractive forces exerted by the quadriceps mechanism. Initial mode of failure may be related to implant failure, fracture of the tibial tuberosity, or a combination of both. The complications and management of the cases reported here were all associated with avulsion fracture of the tibial tuberosity following tibial tuberosity advancement.

Authors: Pettitt R1, Cripps P, Baker M, Hattersley R, Lorenz N, McConnell F.
Journal: Vet Comp Orthop Traumatol

Introduction: Patellar ligament thickening is a recognized response following osteotomy of the proximal tibia as a treatment for cranial cruciate disease. In humans this is seen as a response to increased loading, but the reason for this thickening in dogs is unclear. A prospective study was undertaken to assess the degree and frequency of patellar ligament desmopathy in 25 consecutive cases undergoing tibial tuberosity advancement (TTA). Objectives: To determine the incidence of patellar ligament thickening following TTA.

Authors: Boland L1, Danger R, Cabon Q, Rabillard M, Brouard S, Bouvy B, Gauthier O.
Journal: Vet Comp Orthop Traumatol

Objectives: To measure the activity of matrix metalloproteinases (MMP)-2 and -9 in synovial fluid from the stifle joints of dogs with cranial cruciate ligament (CrCL) rupture and to compare that to values from contralateral stifle joints and dogs with clinically normal stifle joints. Additionally, the C-reactive protein (CRP) levels were also measured. Methods: Fourteen large breed dogs with unilateral CrCL rupture and 11 large breed normal dogs were included in this prospective clinical study.

Authors: Lacitignola L1, Staffieri F, Rossi G, Francioso E, Crovace A.
Journal: Vet Comp Orthop Traumatol

Objective: The aim of this study was to track the survival and efficacy of allogeneic bone marrow mesenchymal stem cells (BM-MSC) marked with red fluorescent protein (BM-MSCRFP) in an ovine model of collagenase-induced tendinopathy. Methods: Bone marrow was harvested from one donor sheep and BM-MSC were isolated, cultivated and transfected with red fluorescent protein (BM-MSCRFP). Collagenase was injected into both Achilles tendons in the remaining nine sheep.